PMID- 9565342 OWN - NLM STAT- MEDLINE DCOM- 19980512 LR - 20190921 IS - 0945-6317 (Print) IS - 0945-6317 (Linking) VI - 432 IP - 4 DP - 1998 Apr TI - Expression of c-Met in laryngeal carcinoma. PG - 331-5 AB - Expression of c-Met, a gene for the hepatocyte growth factor/scatter factor (HGF/SF) receptor, is known to be associated with tumour development in several human carcinomas. The expression of c-Met was examined using immunohistochemistry in 82 cases of primary laryngeal carcinoma to evaluate the tissue distribution of c-Met and the clinicopathological significance of c-Met expression. In normal larynx, c-Met expression was observed only in some minor salivary glands. Positive reaction for c-Met in neoplastic epithelium was noted in 45 out of 82 (54.9%) cases. In 44 cases, structures adjacent to the carcinoma (noncancerous squamous epithelium, some stromal fibroblastic cells, and endothelial cells) showed positive reaction for c-Met. c-Met expression in cancerous epithelium was significantly correlated with lymph node status (P<0.04) and proliferating activity expressed by the Ki-67 labelling index (P<0.02). There was no correlation between c-Met expression and age, sex, histological type, T category, distant metastasis or clinical stage. The data suggest that overexpression of c-Met in laryngeal carcinomas represents a growth advantage for cancer cells, which may be conferred by the mitogenic effect of HGF/SF. Simultaneous c-Met expression in noncancerous components of the larynx may represent a paracrine modification of c-Met. FAU - Sawatsubashi, M AU - Sawatsubashi M AD - Department of Pathology, Saga Medical School, Nabeshima, Japan. FAU - Sasatomi, E AU - Sasatomi E FAU - Mizokami, H AU - Mizokami H FAU - Tokunaga, O AU - Tokunaga O FAU - Shin, T AU - Shin T LA - eng PT - Journal Article PL - Germany TA - Virchows Arch JT - Virchows Archiv : an international journal of pathology JID - 9423843 RN - 0 (Ki-67 Antigen) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma, Squamous Cell/*metabolism MH - Humans MH - Immunohistochemistry MH - Ki-67 Antigen/metabolism MH - Laryngeal Neoplasms/*metabolism MH - Larynx/*metabolism MH - Middle Aged MH - Proto-Oncogene Proteins c-met/*metabolism EDAT- 1998/05/16 00:00 MHDA- 1998/05/16 00:01 CRDT- 1998/05/16 00:00 PHST- 1998/05/16 00:00 [pubmed] PHST- 1998/05/16 00:01 [medline] PHST- 1998/05/16 00:00 [entrez] AID - 10.1007/s004280050174 [doi] PST - ppublish SO - Virchows Arch. 1998 Apr;432(4):331-5. doi: 10.1007/s004280050174.